Specification of a patent for a machine for grinding, levelling, and polishing metallic plates, to prepare them for the engraver, and for other purposes. Granted to J.W. Stone, Washington city, D. C. April 30, 1831

✍ Scribed by J.W. Stone

• Book ID: 114028883
• Publisher: Elsevier Science
• Year: 1831
• Tongue: English
• Weight: 219 KB
• Volume: 12
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(31)90270-6